LU87983A1 - ASSEMBLY CONNECTION BETWEEN POST AND CARRIER FOR STEEL / CONCRETE STOREY CONSTRUCTIONS - Google Patents

Description

ASSEMBLY CONNECTION BETWEEN POST AND CARRIER FOR STEEL / CONCRETE FLOOR CONSTRUCTIONS

The invention relates to an assembly connection between the support and the support in steel / concrete storey constructions. While in classic steel scaffolding for high and high loads, the individual "rods" of such a construction are welded or screwed together at the junctures, if necessary using gusset plates, today combination systems of steel girders with concrete / steel bandages find a wide range of possible applications, especially for medium to light ones Constructions such as Halls, office buildings, department store buildings and the like.

A wide spread for the formation of a floor ceiling in such constructions has e.g. found the combination of steel section beams with (preferably prestressed) precast elements, the steel beams being the horizontal connecting links between two adjacent vertical section steel columns and acting as supports for the above-mentioned ceiling elements.

With such a combination, the above-mentioned ceiling elements can be placed or applied, for example, on the upper flange of the steel profile beam, the latter also advantageously being designed as a composite chamber beam for the purpose of simultaneously increasing the load-bearing capacity and fire resistance. With a chamber composite girder, the chamber of the I-steel profile is poured on both sides with a reinforced or unreinforced concrete mass. Such composite beams, or composite profiles, are known for example from documents LU 84772 and LU 84 966. Advantageous applications are described in the brochure "The universal AF composite construction system based on roller supports" from ARBED, L-Luxembourg.

This combination of steel profile beams with preferably pre-stressed precast elements also offers the alternative that the steel beam is practically completely integrated into the ceiling (flat ceiling construction) by placing the precast elements on the widened lower flange of the steel beam, so that there is a corresponding gain of usable floor heights as well as architectural, aesthetic and fire protection advantages.

A specific problem has hitherto been the connection between said steel beam and said steel column in terms of construction and cost, the latter also being a steel / concrete composite construction.

Well-known, common connections have so far been based on lugs, gusset plates, steel collars, steel mushrooms etc. assigned to the steel support, the disadvantage of which, however, is that the preparatory work on the steel support is complex and expensive, the mounting of the support on the support and the execution of the concrete ceiling are cumbersome, time-consuming and therefore also expensive.

To avoid these disadvantages of the prior art, it is therefore an object of the invention to propose an assembly connection of the type mentioned at the beginning, in which the effort to create a base on the support is minimized and by means of suspension elements provided on the carrier for cooperation with the said base the support can also be mounted on the support with minimal effort and with the greatest speed.

This task is solved by an assembly connection of the type mentioned at the outset with the features listed in the identification of the main claim.

An embodiment of the inven tion is shown in the drawings, in which the same parts are provided with the same reference numerals, and is described in more detail below. Show it:

FIG. 1, a front view of a profile carrier with a mounting head plate according to the invention as the first connecting part for interacting with a second hook-in mounting connection element on a support (not shown here), and partial views of precast concrete parts laid on the widened bottom flange of the said profile beam;

FIG. 2, a partial side view from the left (section) of the object according to FIG. 1 with assigned second hook-in mounting connection elements on a section steel support;

Figure 3f is a plan view in section of the object of Figure 2;

Figure 4, a view analogous to that of Figure 1, but with additional reinforced concrete reinforcement (mounting head plate not shown here).

Figure 1 shows a ceiling profile beam 6 with a narrow, thick upper flange and a wide, thinner lower flange 8, which is claimed in the longitudinal direction as part of the entire asymmetrical profile cross section and in the transverse direction as a support plate absorbs the loads from the ceiling 10, 12 and in the Total cross section initiates.

According to the invention, a vertical hook mounting head plate 16 is welded to at least one profile carrier extremity, here to the carrier web 14, which in the example shown is provided with two slots 18, 20 which are designed to diverging in their lower part.

FIG. 2 shows a profile support 22 of the storey structure assigned to the profile support 6 with at least two (see also FIG. 3) screw bolts 24, 26 provided thereon as connecting elements, into which mounting head plates 16 are suspended with their slots 18, 20 during assembly. Screw pairs 24 ', 26' (see also FIG. 3) are provided for connecting profile supports 6 to supports 22 on both sides.

In order to ensure the positional rigidity of the bolts 24, 24 'and 26, 26' necessary for the mounting of the carrier, they are connected to one another by means of a bridging screw connection 28, 30 until the assembly process is complete. After assembly, the latter is removed and the connection is consolidated by tightening the nuts 32, 34, 32 ', 34'.

For the sake of completeness, FIG. 4 shows an arrangement analogous to that according to FIG. 1, in which a reinforced concrete reinforcement 36, 38 known per se is provided in the profile carrier cavities (the mounting head plate 16 is not shown here for the sake of clarity).

After completion of the storey construction according to FIGS. 1 and / or 2, both the cavities in the area of profiled beams 6 / ceiling elements 10, 12 and in the area of the mounting head plate 16 are poured with concrete.

Claims (6)

1. Installation connection between the support (6) and the support (22) in steel / concrete storey constructions, characterized by a mounting head plate (16) provided with essentially vertical slots (18, 20) on at least one support extremity as the first connection element and by at least two screw bolts (24, 26) as a second connection element on the support (6), said slots (18, 20) during assembly of the support (22) on the support (6) with the shafts of the screw bolts (24, 26) Intervention. 2. Mounting connection according to claim 1, characterized by a second pair of bolts (24 ', 26') on the opposite side of the support (22) for receiving a second carrier (6). 3. Mounting connection according to claim 2, characterized by a bridging screw (28, 30) between the bolts (32, 32 '), or (34, 34') for securing their position during the assembly of a carrier (22). 4. Assembly connection according to claims 1 to 3, characterized in that the slots (18, 20) run diverging downwards. 5. Mounting connection according to any one of claims 1 to 4, characterized by a on the underside of the carrier (22) attached support plate (8) which serves as a support for concrete slabs (10, 12). 6. Mounting connection according to claim 4, characterized in that the combination carrier (22) / ceiling panels (10, 12) is a flat ceiling construction.